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A simple S400 prop question

Old 09-06-2003, 08:52 PM
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Default A simple S400 prop question

I asked a LHS for a couple 4.75x4.75 APC props and handed them my credit card. When I got home, I discovered that I had been given 4.7x2.4 props. Since the packing said they were for S400s and I wanted to fly, I stuck one on my Speedy and went to the field. It flew well. Not as fast, but overall throttle repsonse was better. THE QUESTION IS: How does the prop change alter my current draw, everything else being constant?

Old 09-06-2003, 09:07 PM
Greg Covey
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Default A simple S400 prop question

The lower pitch reduces the current draw of the motor and reduces the speed of the plane.

I'm moving this thread to a more appropriate forum.


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